The RYOBI Electrostatic Nozzle Replacement 3-Pack comes with 2 low nozzles and 1 high nozzle for the RYOBI 18V ONE+ 1 Gal. and 1/2 Gal. Electrostatic Sprayers. This nozzle pack is perfect for replacing your existing RYOBI Electrostatic Sprayer nozzles or to keep on hand when you need them. The pack comes with 2 nozzle settings: low and high. The low nozzle is 65 microns and sprays up to 2 ft. This setting is ideal for precise spraying in small indoor spaces. The high nozzle is 160 microns and sprays up to 10 ft. This setting is best for outdoor use and for priming the unit. The RYOBI Electrostatic Nozzle Replacement 3-Pack, 2 Low 1 High, is only compatible with the RYOBI 18V ONE+ 1 Gal. and 1/2 Gal. Electrostatic Sprayers.